Combined seat and back support cushion



FIG. 1 is a front elevational view of a seat cushion showing our new design with the seat cushion including a back support member shown in an upright position;

FIG. 2 is a side elevational view thereof, the bottom and the rear elevational view of the back support member being plain and unornamented.

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a cut away perspective view thereof. 

The ornamental design for a combined and back support cushion, as shown and described. 